/* --- Swazz Javascript Calendar ---
/* --- v 1.0 3rd November 2006
By Oliver Bryant
http://calendar.swazz.org */

function getObj(objID)
{
    if (document.getElementById) {return document.getElementById(objID);}
    else if (document.all) {return document.all[objID];}
    else if (document.layers) {return document.layers[objID];}
}



function checkClick(e) {
	e?evt=e:evt=event;
	CSE=evt.target?evt.target:evt.srcElement;
	if (getObj('fc'))
		if (!isChild(CSE,getObj('fc')))
			getObj('fc').style.display='none';
}

function isChild(s,d) {
	while(s) {
		if (s==d) 
			return true;
		s=s.parentNode;
	}
	return false;
}

function Left(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft;
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function Top(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop;
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}
	
document.write('<table id="fc" style="position:absolute;border-collapse:collapse;background:#FFFFFF;border:1px solid #ABABAB;display:none" cellpadding=2>');
document.write('<tr><td style="cursor:pointer" onclick="csubm()"><img src="'+filePath+'arrowleftmonth.gif"></td><td colspan=5 id="mns" align="center" style="font:bold 13px Arial"></td><td align="right" style="cursor:pointer" onclick="caddm()"><img src="'+filePath+'arrowrightmonth.gif"></td></tr>');
document.write('<tr><td align=center style="background:#ABABAB;font:12px Arial">S</td><td align=center style="background:#ABABAB;font:12px Arial">M</td><td align=center style="background:#ABABAB;font:12px Arial">T</td><td align=center style="background:#ABABAB;font:12px Arial">W</td><td align=center style="background:#ABABAB;font:12px Arial">T</td><td align=center style="background:#ABABAB;font:12px Arial">F</td><td align=center style="background:#ABABAB;font:12px Arial">S</td></tr>');
for(var kk=1;kk<=6;kk++) {
	document.write('<tr>');
	for(var tt=1;tt<=7;tt++) {
		num=7 * (kk-1) - (-tt);
		document.write('<td id="v' + num + '" style="width:18px;height:18px">&nbsp;</td>');
	}
	document.write('</tr>');
}
document.write('</table>');

document.all?document.attachEvent('onclick',checkClick):document.addEventListener('click',checkClick,false);


// Calendar script
var now = new Date;
var sccm=now.getMonth();
var sccy=now.getFullYear();
sccy = sccy-2;
var ccm=now.getMonth();
var ccy=now.getFullYear();

var updobj;
var formObj;
function lcs(ielem) {
	updobj=ielem;
	getObj('fc').style.left=Left(ielem);
	getObj('fc').style.top=Top(ielem)+ielem.offsetHeight;
	getObj('fc').style.display='';
	
	// First check date is valid
	curdt=ielem.value;
	curdtarr=curdt.split('/');
	isdt=true;
	for(var k=0;k<curdtarr.length;k++) {
		if (isNaN(curdtarr[k]))
			isdt=false;
	}
	if (isdt&(curdtarr.length==3)) {
		ccm=curdtarr[1]-1;
		ccy=curdtarr[2];
		prepcalendar(curdtarr[0],curdtarr[1]-1,curdtarr[2]);
	}
}

function evtTgt(e)
{
	var el;
	if(e.target)el=e.target;
	else if(e.srcElement)el=e.srcElement;
	if(el.nodeType==3)el=el.parentNode; // defeat Safari bug
	return el;
}
function EvtObj(e){if(!e)e=window.event;return e;}
function cs_over(e) {
	evtTgt(EvtObj(e)).style.background='#FFCC66';
}
function cs_out(e) {
	evtTgt(EvtObj(e)).style.background='#C4D3EA';
}
function cs_click(e) {
	updobj.value=calvalarr[evtTgt(EvtObj(e)).id.substring(1,evtTgt(EvtObj(e)).id.length)];
	var selectDate = updobj.value;
	updateWeek(selectDate);
	u=getWeekStartDay(selectDate);
	updobj.value=u;
	getObj('fc').style.display='none';
	
	var opts = document.getElementById('chooseProject').options;
	var prjId="";
	for(i=0;i<opts.length;i++) {
		if(opts[i].selected) {
			prjId =  opts[i].value;	
		}
	}
	var pmId="", pmIdStr="";
	if(document.getElementById('pmId') != null) {
		var optns = document.getElementById('pmId').options;
		for(i=0;i<optns.length;i++) {
			if(optns[i].selected) {
				pmId =  optns[i].value;	
			}
		}
	}
	if(pmId != null && pmId=="") {
		pmIdStr="";
	} else {
		pmIdStr = "&&pmId="+pmId;
	}
	if(confirm('Any unsaved timesheet data for selected week will be cleared. Press [OK] to confirm & continue?')){
		document.forms.populatedataform.action="timesheet.html?method=populateTimesheet&&chooseProject="+prjId+pmIdStr;
		document.forms.populatedataform.submit();
	}
}

var mn=new Array('JAN','FEB','MAR','APR','MAY','JUN','JUL','AUG','SEP','OCT','NOV','DEC');
var mnn=new Array('31','28','31','30','31','30','31','31','30','31','30','31');
var mnl=new Array('31','29','31','30','31','30','31','31','30','31','30','31');
var calvalarr=new Array(42);

function f_cps(obj) {
	obj.style.background='#C4D3EA';
	obj.style.font='10px Arial';
	obj.style.color='#333333';
	obj.style.textAlign='center';
	obj.style.textDecoration='none';
	obj.style.border='1px solid #6487AE';
	obj.style.cursor='pointer';
}

function f_cpps(obj) {
	obj.style.background='#C4D3EA';
	obj.style.font='10px Arial';
	obj.style.color='#ABABAB';
	obj.style.textAlign='center';
	obj.style.textDecoration='line-through';
	obj.style.border='1px solid #6487AE';
	obj.style.cursor='default';
}

function f_hds(obj) {
	obj.style.background='#FFF799';
	obj.style.font='bold 10px Arial';
	obj.style.color='#333333';
	obj.style.textAlign='center';
	obj.style.border='1px solid #6487AE';
	obj.style.cursor='pointer';
}

// day selected
function prepcalendar(hd,cm,cy) {
	now=new Date();
	sd=now.getDate();
	td=new Date();
	td.setDate(1);
	td.setFullYear(cy);
	td.setMonth(cm);
	cd=td.getDay();
	getObj('mns').innerHTML=mn[cm]+ ' ' + cy;
	marr=((cy%4)==0)?mnl:mnn;
	for(var d=1;d<=42;d++) {
		f_cps(getObj('v'+parseInt(d)));
		if ((d >= (cd -(-1))) && (d<=cd-(-marr[cm]))) {
			dip=((d-cd < sd)&&(cm==sccm)&&(cy==sccy));
			htd=((hd!='')&&(d-cd==hd));
			if (dip)
				f_cpps(getObj('v'+parseInt(d)));
			else if (htd)
				f_hds(getObj('v'+parseInt(d)));
			else
				f_cps(getObj('v'+parseInt(d)));

			getObj('v'+parseInt(d)).onmouseover=(dip)?null:cs_over;
			getObj('v'+parseInt(d)).onmouseout=(dip)?null:cs_out;
			getObj('v'+parseInt(d)).onclick=(dip)?null:cs_click;
			
			getObj('v'+parseInt(d)).innerHTML=d-cd;	
			calvalarr[d]=''+(d-cd)+'/'+(cm-(-1))+'/'+cy;
		}
		else {
			getObj('v'+d).innerHTML='&nbsp;';
			getObj('v'+parseInt(d)).onmouseover=null;
			getObj('v'+parseInt(d)).onmouseout=null;
			getObj('v'+parseInt(d)).style.cursor='default';
		}
	}
}

prepcalendar('',ccm,ccy);
//getObj('fc'+cc).style.visibility='hidden';

function caddm() {
	marr=((ccy%4)==0)?mnl:mnn;
	
	ccm+=1;
	if (ccm>=12) {
		ccm=0;
		ccy++;
	}
	cdayf();
	prepcalendar('',ccm,ccy);
}

function csubm() {
	marr=((ccy%4)==0)?mnl:mnn;
	
	ccm-=1;
	if (ccm<0) {
		ccm=11;
		ccy--;
	}
	cdayf();
	prepcalendar('',ccm,ccy);
}

function cdayf()
 {
		if ((ccy>sccy)|((ccy==sccy)&&(ccm>=sccm)))
			return;
		else {
			ccy=sccy;
			ccm=sccm;
			cfd=scfd;
			}
}


Date.prototype.getWeekNumber = function()
 {
    var determinedate = new Date();
    determinedate.setFullYear(this.getFullYear(), this.getMonth(), this.getDate());
    determinedate.setHours(0);
    determinedate.setMinutes(0);
    determinedate.setSeconds(0);
    var D = determinedate.getDay();
    if(D == 0) D = 7;
    determinedate.setDate(determinedate.getDate() + (4 - D));
    var YN = determinedate.getFullYear();
    var ZBDoCY = Math.floor((determinedate.getTime() - new Date(YN, 0, 1, -6)) / 86400000);
    var WN = 1 + Math.floor(ZBDoCY / 7);
    return WN;
};



function updateWeek(str)
{
		
		

		var ldate = str.split('/');
		var temp= new String();
		var ldateTemp= temp.concat(ldate[1],"/", ldate[0], "/", ldate[2], " 12:00 PM" );
		var mydate = new Date(ldateTemp);
		
		

		dayWeek1=0;
		for(i=1;i<=7;i++){
			var dayWeek1 = mydate.getDay();
			dayWeek1= (dayWeek1 -i)*24*60*60*1000;		
			var myDatenew=new Date(parseFloat(mydate- dayWeek1));
			myDatenew.toLocaleString();
 		
			var curr_date = myDatenew.getDate();
			var curr_month = myDatenew.getMonth()+1;		
			var curr_year = myDatenew.getFullYear();
			var datestr=curr_date + "/" + curr_month + "/" + curr_year;
			
			var dateT = datestr.split('/');
			var year = dateT[2].substr(2);
			var datestrshow=curr_date + "/" + curr_month + "/" + year;
			if(document.getElementById("day"+i) != null) {
				document.getElementById("day"+i).innerHTML = datestrshow;
				document.getElementById("day_"+i).value = datestr;
			}
			if(i==1){
				if(document.getElementById("week_start_date") != null) {
					document.getElementById("week_start_date").value = datestr;
				}
				if(document.getElementById("calender") != null) {
					document.getElementById("calender").value=datestr;
				}
			}
			if(i==7){
				if(document.getElementById("week_end_date") != null ) {
					document.getElementById("week_end_date").value = datestr;
				}
			}
		}
		
		var weeknumber = mydate.getWeekNumber();
		if(document.getElementById('weeknum') != null) {
			document.getElementById('weeknum').innerHTML=weeknumber;
		}

		today=new Date();
		var prevSDate = getPrevWeekStartDate(today);
		var prevWeekStartDate = dateFormat(prevSDate);
		document.copyform.prev_week_start_date.value = prevWeekStartDate;
		

		var prevEDate = getPrevWeekEndDate(today);
		var prevWeekEndDate = dateFormat(prevEDate);
		document.copyform.prev_week_end_date.value = prevWeekEndDate;
		
		
}

function getPrevWeekStartDate(a) {

	return new Date(a.getTime() - ( (6+(a.getDay()||7))*24*60*60*1000 ));

}

function getPrevWeekEndDate(a) {

	return new Date(a.getTime() - ( ((a.getDay()||7))*24*60*60*1000 ));

}

function dateFormat(myDate){

	var curr_date = myDate.getDate();
	var curr_month = myDate.getMonth()+1;		
	var curr_year = myDate.getFullYear();
	var date=curr_date + "/" + curr_month + "/" + curr_year;

	return date;

}
function getWeekStartDay(str){
	var ldate = str.split('/');
	var temp= new String();
	var ldateTemp= temp.concat(ldate[1],"/", ldate[0], "/", ldate[2], " 12:00 PM" );
	var mydate = new Date(ldateTemp);
	var dayWeek1 = mydate.getDay();
	dayWeek1= (dayWeek1 -1)*24*60*60*1000;		
	var myDatenew=new Date(parseFloat(mydate- dayWeek1));
	myDatenew.toLocaleString();
 	var curr_date = myDatenew.getDate();
	var curr_month = myDatenew.getMonth()+1;		
	var curr_year = myDatenew.getFullYear();
	var datestr=curr_date + "/" + curr_month + "/" + curr_year;
	return datestr;	
}

//function weekStartByCurrentDate(d){
//var currentTime = new Date();
//var month = currentTime.getMonth() + 1
//var day = currentTime.getDate()
//var year = currentTime.getFullYear()
//var currentDate=day + "/" + month + "/" + year;
//var	startWeekDay = getWeekStartDay(currentDate);
//document.getElementById("calender").value=startWeekDay;
//updateWeek(currentDate);

//}